CN106291712B - A kind of data processing method for data after brill - Google Patents
A kind of data processing method for data after brill Download PDFInfo
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Abstract
The invention discloses a kind of data processing methods for data after brill, the described method comprises the following steps: data acquisition obtains Calculation results before the brill of prospect pit and acquires data after the brill for obtaining the prospect pit；Data prediction after brill calculate analysis to data after the brill to obtain Calculation results after brill corresponding with Calculation results before the brill；Comparative analysis, the comparative analysis of Calculation results obtains the comprehensive analysis processing for data after the brill as a result, the comprehensive analysis processing result include the reasonable sex determination of Calculation results and/or the reason of lead to Calculation results generation deviation before the brill before the brill after Calculation results and the brill before to the brill.The uncertainty of Analysing Geological Data calculated result before boring can be reduced according to the method for the present invention, improves geology status predication success rate, to finally reduce the risk of oil-gas exploration.
Description
Technical field
The present invention relates to geological exploration fields, in particular relate to a kind of data processing method for data after brill.
Background technique
During geological prospecting, it will usually be analyzed based on geological property of the current geologic data to specific region
It calculates to obtain the analysis result of geological property.Due to the particularity of geological prospecting process, the analytical calculation of geological property
As a result there is the geologic data before certain uncertainty, especially prospect pit probing (before brill) for the corresponding region of prospect pit to adopt
Collect and insufficient, this just further increases the uncertainty of the analysis result of the geological property before boring.
For an independent prospect pit, common exploration and development process is to be divided first according to the geologic data obtained before boring
Analysis calculates analysis result before the brill to obtain geological property, then selected according to analysis result before the brill of geological property
The parameters of prospect pit are developed (probing).But the uncertainty of the analysis result due to the geological property before boring,
There are certain failure rates for the exploitation (probing) of above-mentioned prospect pit.
In the prior art, in order to improve prospect pit exploitation (probing) success rate, when prospect pit probing after, it will usually
According to the analysis result of the geological property of accurate data acquisition corresponding region relatively detailed after brill.To geological property after brill
Analysis result analyze and research to reduce the analytical calculation of geological property before the brill of next exploration targets (prospect pit)
As a result uncertainty.
But in actual operation, due in reality geological condition it is complicated and changeable, real data is simultaneously after the brill of a upper prospect pit
The actual conditions of current prospect pit cannot be met, therefore, under the current state of the art, based on geological property after the brill to history prospect pit
Analysis result carry out analysis and research the exploration and development risk of subsequent prospect pit can not be effectively reduced.
Therefore, in order to further decrease the exploration and development risk of prospect pit, a kind of new Analysing Geological Data processing side is needed
Method.
Summary of the invention
In order to further decrease the exploration and development risk of prospect pit, the invention proposes a kind of after brill at the data of data
Reason method, the described method comprises the following steps:
Data acquisition obtains Calculation results before the brill of prospect pit and acquires data after the brill for obtaining the prospect pit；
Data prediction after brill calculate analysis to data after the brill to obtain and Calculation results before the brill
Calculation results after corresponding brill；
Comparative analysis, based on the comparative analysis to Calculation results after Calculation results before the brill and the brill
The comprehensive analysis processing for data after the brill is obtained as a result, the comprehensive analysis processing result includes calculating point before the brill
It analyses the reasonable sex determination of result and/or leads to the reason of Calculation results generate deviation before the brill.
In one embodiment, in the comparative analysis step, for Calculation results before the brill and the brill
The data in Calculation results with oily probability correlation compare and analyze afterwards.
In one embodiment, in the comparative analysis step, for oily probability calculation result before boring and after boring
The probing success/failure condition of the prospect pit compare and analyze.
In one embodiment, in the comparative analysis step, for failing corresponding to well after brill before brill prime factor
Calculated result and the actual conditions for the well that fails after the brill compare and analyze.
In one embodiment, it in the comparative analysis step, obtains and is surveyed with associated be associated with of the prospect pit after boring
Target is visited, successfully/failure condition is drilled to oil-containing spirit before the brill of the association exploration targets based on the prospect pit after brill
Rate calculated result is modified.
In one embodiment, in the comparative analysis step, for Calculation results before the brill and the brill
Data relevant to stock number compare and analyze in Calculation results afterwards.
In one embodiment, it in the comparative analysis step, is compared and analyzed by double-log plate, it is described double right
Cross/ordinate of number plates be respectively before the brill after Calculation results and the brill in Calculation results with stock number
Relevant data.
In one embodiment, in the comparative analysis step, cross/ordinate of the double-log plate is respectively described
Stock number analysis meter after stock number analytical calculation value and the brill before boring in Calculation results in Calculation results
Calculation value.
In one embodiment, in the comparative analysis step, cross/ordinate of the double-log plate is respectively described
It is calculated after the analytical calculation value of special parameter and the brill during stock number analytical calculation before boring in Calculation results
The analytical calculation value of respective specific parameter during stock number analytical calculation in analysis result.
In one embodiment, in the comparative analysis step, with the stock number in Calculation results after the brill point
The quartile number interval for analysing calculated value is horizontal axis, using the number of the analysis object in Calculation results after the brill as the longitudinal axis, root
According to point of each quantile of the stock number analytical calculation value in Calculation results before the brill of the corresponding analysis object
Cloth position compares and analyzes.
The uncertainty of Analysing Geological Data calculated result before boring can be reduced according to the method for the present invention, improve geology shape
State success rate prediction, to finally reduce the risk of oil-gas exploration.
Other feature or advantage of the invention will illustrate in the following description.Also, Partial Feature of the invention or
Advantage will be become apparent by specification, or be appreciated that by implementing the present invention.The purpose of the present invention and part
Advantage can be realized or be obtained by step specifically noted in the specification, claims and drawings.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example and is used together to explain the present invention, be not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is method execution flow chart according to an embodiment of the invention；
Fig. 2 is embodiment success well and unsuccessfully well column schematic diagram according to the present invention；
Fig. 3 be according to the present invention an embodiment failure well column analysis chart；
Fig. 4 is stock number variance analysis figure according to an embodiment of the invention；
Fig. 5 a-5d is stock number analysis result figure after the brill under different situations according to an embodiment of the invention；
Fig. 6 is another embodiment success well and unsuccessfully well column schematic diagram according to the present invention；
Fig. 7 is another embodiment failure well column analysis chart according to the present invention；
Fig. 8 is stock number variance analysis figure according to another embodiment of the present invention.
Specific embodiment
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and examples, implementation personnel of the invention whereby
Can fully understand that how the invention applies technical means to solve technical problems, and reach technical effect realization process and according to
The present invention is embodied according to above-mentioned realization process.As long as each embodiment it should be noted that do not constitute conflict, in the present invention
And each feature in each embodiment can be combined with each other, be formed by technical solution protection scope of the present invention it
It is interior.
During practical exploration and development, due to the characteristic of prospect pit itself, for a certain region, before prospect pit probing and
The detailed degree of collected geological property and accuracy rate are different greatly after probing.Thus the ground prime number that analytical calculation obtains
It is also big different according to the accuracy of result.In simple terms, compared to the analysis result of geological property before boring, geology category after brill
The uncertainty of the analysis result of property substantially reduces.One simply example is, before brill can only analytical calculation obtain certain spy
Determine the oily probability (whether unascertainable theory has oil gas) in region, but can then determine after boring and (whether drill out oil gas).
Based on above-mentioned analysis, in order to further decrease the exploration and development risk of prospect pit, the invention proposes a kind of new ground
Matter data analysis processing method.Method of the invention analyzes and researches to the analysis result of data after brill next to reduce
The uncertainty of the analysis result of geological property before the brill of a exploration targets (prospect pit).
Method of the invention calculates analysis knot for Calculation results before the brill of same prospect pit geological property and after boring
Fruit compares and analyzes to obtain and lead to bore the reason of preceding Calculation results generate deviation (uncertain larger).And it is based on obtaining
The reason of getting improvement obtains the detailed process for boring preceding Calculation results, to reduce Analysing Geological Data meter before later brill
The uncertainty of result is calculated, geology status predication success rate, the final risk for reducing oil-gas exploration are improved.
Next it is based on the specific implementation procedure of flow chart detailed description of the present invention.Step shown in the flow chart of attached drawing
It can be executed in the computer system comprising such as a group of computer-executable instructions.Although showing each step in flow charts
Rapid logical order, but in some cases, it can be with the steps shown or described are performed in an order that is different from the one herein.
As shown in Figure 1, step S110 is first carried out, data collection steps, before the brill for obtaining prospect pit (exploration/Target For Drilling)
Calculation results simultaneously acquire data after the brill for obtaining prospect pit.
In view of bore after data and bore before Calculation results type, in terms of difference, next to execute
Step S120, data prediction after brill, calculate analysis to data after brill with obtain with bore before Calculation results it is corresponding
Brill after Calculation results (type, form of expression etc. correspond to each other).
Comparative analysis step can be executed later, based on to Calculation results after Calculation results before boring and brill
Comparative analysis obtain for bore after data comprehensive analysis processing result.
It can be appreciated that the first step for obtaining comprehensive analysis processing result is to execute step S130, before brill/bore after compare step
Suddenly, Calculation results after comparison is bored preceding Calculation results and bored.Based on the particularity of geological prospecting process, in current skill
The uncertainty of specific data before boring under the conditions of art in Calculation results is unavoidable.The purpose of the present invention is to the greatest extent may be used
The uncertain control that will bore preceding Calculation results of energy is in reasonable/ideal range.
Therefore in the present embodiment, step S140, analysis on its rationality are first carried out based on step S130, analysis calculates before boring
Analyze the reasonability of result.If rationally (Calculation results are researcher's before namely boring for Calculation results before boring
In ideal range), then the process/parameter for illustrating to obtain Calculation results before current bore be a relative ideal process/
Parameter, that is to say, that do not need to analyze current calculating in Calculation results before carrying out the brill for next prospect pit
Journey/parameter is adjusted.
If Calculation results are unreasonable before boring (preceding Calculation results are namely bored not in the ideal model of researcher
In enclosing), then illustrating that needing to be directed to the current process/parameter for boring preceding Calculation results of current acquisition improves.It holds at this time
Row step S150, variance analysis step, before analysis is bored Calculation results and difference after boring between Calculation results with
Acquisition leads to the reason of Calculation results generate deviation before boring.
Finally execute step S160, feedback step, reasonable sex determination of the output comprising Calculation results before above-mentioned brill and/
Or lead to the comprehensive analysis processing for the reason of Calculation results generate deviation before boring as a result, and based on comprehensive analysis processing result
Process/parameter of Calculation results before the current brill of the current acquisition of improvement.To in the exploration and development of the prospect pit after progress
The uncertainty of Analysing Geological Data calculated result before boring is reduced, geology status predication success rate is improved, the final oil gas that reduces is surveyed
The risk of spy.
In practical exploration process, Calculation results are one and combine multinomial variety classes number before the brill of geological property
According to integrated data set.Therefore in the step S130, S140, S150 and S160 of the present embodiment, for the front/rear calculating of brill
The different types of data of analysis result take different treatment processes.For more detailed description specific execution of the invention
Next process describes the comparative analysis process (S130, S140, S150, S160) of different types of data respectively.
What needs to be explained here is that can be independently executed below for the treatment process of different types of data or to appoint
What reasonable manner combination is carried out.It situation can choose in following steps according to actual needs in other embodiments of the invention
One or several compare and analyze operation.
With Calculation results after brill, most significant difference is embodied in be contained Calculation results before the brill of geological property
On oil gas probability.
Due to the particularity of geological prospecting process, had based on the geological property state that collected geologic data is got
It is uncertain.Uncertain geological property, which can be directly measured, but after specific prospect pit is drilled, before many probings obtains
It takes, that is to say, that be not present for the uncertainty of these geological properties.Above situation is especially embodied in oil-containing spirit
In rate.It can be appreciated that be before boring can not specify certain region whether oily (oily probability can only be obtained), but usual prospect pit
Can be determined after probing certain region whether oily (whether being drilled into oil gas).
In these cases, it can easier differentiate analysis meter of the geological property corresponding with oily probability before brill
Whether reasonable calculate result.Therefore in the present embodiment, for Calculation results before boring and after boring in Calculation results with
The data of oily probability correlation compare and analyze.
Specifically, step S132 is first carried out, success well analysis, for oily probability calculation result before boring and after boring
The probing success/failure condition of prospect pit compare and analyze.
Using oily probability as abscissa, frequency is left ordinate, success well proportion is that right ordinate draws statistics
Figure.The prospect pit number of successful prospect pit number and failure after boring in each oily probability interval of prediction before drilling is counted, and respectively with column
Shape figure indicates, then counts success well proportion in each section, is indicated with line chart.In the preferable situation of prediction before drilling effect,
Probing performance should be consistent with estimated success rate, i.e., the probability of success is also answered after the higher exploration targets of prediction oily probability is bored
This is higher, indicates that the broken line of successfully well probability is from left to right stepped up.
As shown in Fig. 2, abscissa is probability, left ordinate be successfully well/failure well appearance frequency (representative specifically at
Function/failure well number, with the histogram graph representation of different fillings in figure), right ordinate is the ratio of successfully well (with broken line table in figure
Show).By success well number and failure well number after boring in each oily probability interval of statistics, the ratio of successfully well is calculated, to score
Analyse whether the ratio is consistent with place oily probability interval；Meet preferably, ratio curve is in lasting increase from left to right
Trend illustrates that the accuracy of prediction before drilling is higher, predicts relatively reasonable；Matching degree is poor, illustrates the prediction accuracy before boring
Difference.
Next step S133, failure well (failure well) analysis, for geology before the brill corresponding to well that fails after brill are executed
Unsuccessfully the actual conditions of well compare and analyze after factor calculated result and brill.
Failure well analysis mainly analyzes the dry-well drilled.It is evaluated before being bored by analysis comparison dry-well with after boring
The variation of parameter and Appreciation gist provides information and foundation for adjustment after the brill of other relevant deployment wells and evaluation unit.
In this step, failure well analysis statistics be all failure wells each single item prime factor total number and after boring it is practical
Thus ground prime factor probability and the number that predictably prime factor probability meets analyze the principal risk in out-of-control accident.Specifically do
Method is: using four preservation condition, filling condition, reservoir conditions and trap condition oily probability factors as abscissa, giving one
A threshold value, after statistics is bored dry-well number and dry-well prime factor bore before estimated value meet the well number of the threshold value.To meet the well of threshold value
Several accuracy that prediction before drilling is indicated with the ratio of total dry-well number, ratio is bigger, indicates this risks and assumptions of prediction before drilling
The higher well of probability is more, thus it is remoter to deviate actual result；Ratio is smaller, to estimating relatively low well before the brill of the risks and assumptions
It is more, predict that successful probability is less than normal, it is preferable with final actual coincidence, therefore prediction before drilling is more accurate.
As shown in figure 3, the abscissa of Fig. 3 is divided into four parts (preservation condition, filling condition, reservoir conditions and circle
Close condition).The left side column of every part indicates total dry-well number, and it is given that right side column indicates that the ground prime factor of corresponding part meets
The dry-well number of threshold value, broken line indicate the ratio of qualified dry-well number and total dry-well number；Ratio is bigger, to this geology before boring
The well that the estimated value of the factor is bigger than normal is more, and it is poorer to hold degree.
Next step S134 is executed, oily probability analysis obtains association associated with the prospect pit after brill and explores mesh
Mark, based on the prospect pit after brill drill successfully/failure condition to be associated with exploration targets brill before oily probability calculation result into
Row amendment.
In the analytical calculation of petroleum resources, if the geologic elements (or risks and assumptions) of multiple analysis objects have centainly
Correlation or even perfectly correlated, then wherein with the trap of decisive role, exploration success or not (whether oily) meeting
Increase or decrease the successful probability of other traps.Its calculation formula is as follows:
In formula: in the case that P (X | A) indicates that A trap contains oil gas, the oily probability of X trap；P (XA) indicates X, A circle
It closes while the probability of oily；The probability of P (A) expression A trap oily；Expression is proved to be in A trap to be free of
In the case of oil gas, the oily probability of X trap；P (S) indicates the product of identical oil accumulation factor under zone background；P (A | S) it indicates
It is assumed that in the case that zone contains oil gas, the oil-containing probability of A trap.
If selected each money is commented between object without association (prime factor is mutually indepedent i.e. allly), one of money
Whether oily comments the oily probability of object not influence other relatively independent moneys after commenting object to bore.
As shown in figure 4, horizontal axis is prediction before drilling stock number, the longitudinal axis is the real resource amount for adjusting or estimating after boring.To scheme
In for 4 evaluation goals, B target prediction before drilling near diagonal line and real resource amount meets preferably after boring；C times
It, prediction before drilling is slightly bigger than normal；The prediction before drilling of A and D has greater difference with practical petroleum resources amount, A target prediction before drilling money
Source amount is less than normal, and overly conservative, D target prediction before drilling stock number is bigger than normal, excessively optimistic.
With Calculation results after brill, another significant difference is embodied in Calculation results before the brill of geological property
In stock number.Due to the particularity of geological prospecting process, had not really based on the stock number that collected geologic data is got
It is qualitative.But after specific prospect pit is drilled, since uncertain geological property can be directly measured and obtain before much drilling
It takes, the uncertainty of the Calculation results of the stock number obtained based on these data is also greatly lowered.
In these cases, it can easier differentiate analytical calculation knot of the geological property corresponding with stock number before brill
Whether fruit is reasonable.Therefore in the present embodiment, step S135 is executed, calculates and analyzes for Calculation results before boring and after boring
As a result data relevant to stock number compare and analyze in.
The comparative analysis of TRAP RESERVE is after trap prospect pit is drilled successfully, according to the new data adjustresources of acquirement
Calculating parameter is measured, and then estimates the stock number of probing trap.Pass through the stock number estimation result of comparative analysis different phase, research
Producing reason (over-evaluates, underestimates) to stock number estimation result.
In the present embodiment, it is compared and analyzed first by double-log plate, cross/ordinate difference of double-log plate
For data relevant to stock number in Calculation results after Calculation results before brill and brill.
Specifically, cross/ordinate of double-log plate is respectively the stock number analytical calculation before boring in Calculation results
Stock number analytical calculation value after value and brill in Calculation results.That is, abscissa is the stock number of prediction, ordinate is to bore
The stock number that revaluation or actual verification obtain afterwards is as a result, using the prognostic resources of each Target For Drilling and real resource amount as transverse and longitudinal
Coordinate does cross plot in double-log plate；Exploration targets near diagonal line, prognostic resources and real resource amount symbol
It closes preferable；Exploration targets real resource amount above diagonal line is greater than prognostic resources, illustrates the estimation in prediction
In conservative；Exploration targets real resource amount below diagonal line is less than prognostic resources, illustrates the estimation in prediction
In optimism.
With same method, cross/ordinate of double-log plate can also be respectively the money before boring in Calculation results
Stock number analytical calculation in Calculation results after source is measured the analytical calculation value of special parameter during analytical calculation and bored
The analytical calculation value of respective specific parameter in the process.By the parameter for calculating prognostic resources and corresponding calculate real resource amount
Parameter does cross plot in this figure, and the estimation condition of parameter is judged according to the above method, and analysis causes the main ginseng of result difference
Number.
The stock number comparative analysis that analysis chart carries out such as under type is also compared based on stock number in the present embodiment.After boring
The quartile number interval of stock number analytical calculation value in Calculation results is horizontal axis, with the analysis in Calculation results after brill
The number of object is the longitudinal axis, according to each of the stock number analytical calculation value in Calculation results before the brill of corresponding analysis object
The distributing position of quantile compares and analyzes.
Stock number compare analysis chart be as a means of comment object bore after the quartile number interval of real resource amount be horizontal axis, evaluate after brill
It is the longitudinal axis that money, which comments object number, comments the distributing position of each quantile of stock number of object to estimate prediction result according to the money of estimation
Whether rationally.
Classified display interval (quartile number interval, default are 40 of P20,60 80) by setting, stock number after brill is estimated
Result is calculated to be analyzed:
(1) if the area little Zhi is partial in the distribution that stock number is estimated after boring, illustrate that the prediction result before boring is bigger than normal, it is right
The estimation of stock number is biased to optimistic；In this case, adjustresources amount Prediction Parameters are needed, make the stock number of prediction toward the area little Zhi
Offset；
(2) if the area great Zhi is partial in the distribution that stock number is estimated after boring, illustrate that the prediction result before boring is less than normal, before brill
Prediction is biased to pessimistic；In this case, adjustresources amount Prediction Parameters are needed, deviate the stock number of prediction toward the area great Zhi；
(3) if being distributed in both ends (area little Zhi and the area great Zhi) by the stock number of parameter adjustment estimation after boring, illustrate
The range that Resources Prediction is given before boring is too narrow, fails comprising including actual stock number；In this case, parameter is suitably turned down
P90, the value for tuning up parameter P10 increase the distribution of parameter；
(4) if by the stock number homogeneous distribution of parameter adjustment estimation after boring, illustrate that the estimation of stock number before boring is
Compare reasonably, can be received.
As shown in Fig. 5 a-5d, Fig. 5 a indicates that low value end is biased in the stock number estimated after boring distribution, illustrates before boring to stock number
Estimation it is bigger than normal, it is relatively optimistic；Fig. 5 b indicates that high level end is biased in the stock number estimated after boring distribution, illustrates before boring to stock number
It estimates less than normal, relatively guards；Fig. 5 c indicates the stock number estimated after boring distribution while being biased to high/low value end, and median is less, says
When estimating stock number before bright brill, P90 the and P10 value difference of parameter is too small, and parameter value range is too narrow；Fig. 5 d is indicated after boring
The stock number of estimation is more balanced in the distribution of each section, illustrates that the estimation of stock number before boring is relatively reasonable.
To sum up, the uncertainty of Analysing Geological Data calculated result before boring can be reduced according to the method for the present invention, improved
Geology status predication success rate, to finally reduce the risk of oil-gas exploration.
Next implementation process of the invention is described with a concrete application example.
The analysis processing of data after being bored by taking certain block as an example, the three-level trap being related to 8, layer trap 9, wherein A
Two layer traps under trap, and the two layer of trap is associated layers trap (identical filling condition).
(1) success well analysis
As shown in fig. 6, abscissa is probability, left ordinate be successfully well/failure well appearance frequency (representative specifically at
Function/failure well number, with the histogram graph representation of different fillings in figure), right ordinate is the ratio of successfully well (with broken line table in figure
Show).
As seen from Figure 6, in 9 layer traps, 5 of oily probability less than 0.1 are predicted, oily probability is located at 0.1-
1 of 0.2 section, 2 between 0.3-0.4, positioned at 1 of 0.7-0.8.Certified oil and gas bearing trap 2, is free of
The trap of oil gas 7, the probability (obtaining the well of gas stream and the ratio of total well number) of success well, 0-0.1 probability interval for 0 (at
Function 0, failure 5), the section 0.1-0.2 be 1 (success 1, failure 0), 0.3-0.4 probability interval be 0.5 (success 1, failure 1),
It is 0 (failure 1) in 0.7-0.8 probability interval, remaining probability interval does not have well distribution.Analytic explanation, in 0.7-0.8 probability interval
This mouthful of well, the prediction probability of success is higher, but it is practical confirm to be dry-well, therefore the prediction to the well geologic risk factor before boring
It is excessively optimistic.
(2) failure well analysis
In this example, failure well (trap) shares 7, is threshold value with probability value 0.8, counts each geology wind in 7 mouthfuls of failure wells
The dangerous factor (preservation condition, filling condition, reservoir conditions and trap condition) probability meets the well number of threshold value.As shown in fig. 7, wherein
Preservation condition satisfaction 0.8 has 6 mouthfuls of wells, ratio 0.86；Filling condition satisfaction 0.8 has 3 mouthfuls of wells, ratio 0.43；Reservoir
Condition satisfaction 0.8 has 3 mouthfuls of wells, ratio 0.43；Trap condition satisfaction 0.8 has 7 mouthfuls of wells, ratio 1.It follows that protecting
The prediction of condition and trap condition before brill is deposited generally to be over-evaluated, and fill condition and reservoir conditions estimation it is relatively accurate.
(3) gas & oil bearing analysis after boring
Two layer traps under A trap have the general character factor (identical filling condition), in interrelated situation, wherein
The success of one layer trap can significantly promote the probability of success of another trap, be associated oily probability after trap is bored and become
Change as shown in table 1.Such as trap 2-2, in the successful situation of 2-1, oily probability rises to 0.63 from 0.14.
Table 1
(4) stock number is analyzed
The stock number of 2 traps and prediction before drilling that stock number is re-evaluated after probing is compared and analyzed, such as Fig. 8 institute
Show, wherein trap 2-1 prediction before drilling crude resources amount is 620,000 tons, and trap 2-3 prediction before drilling stock number is 900,000 tons, after boring
It reappraises, trap 2-1 stock number is 580,000 tons, and trap 2-3 stock number is 380,000 tons.Obviously, the prediction before drilling of trap 2-1 compared with
To be accurate, and the prediction before drilling of trap 2-3 is obviously bigger than normal, and estimation result is excessively optimistic.
While it is disclosed that embodiment content as above but described only to facilitate understanding the present invention and adopting
Embodiment is not intended to limit the invention.Method of the present invention can also have other various embodiments.Without departing substantially from
In the case where essence of the present invention, those skilled in the art make various corresponding changes or change in accordance with the present invention
Shape, but these corresponding changes or deformation all should belong to scope of protection of the claims of the invention.
Claims (7)
1. a kind of data processing method for data after brill, which is characterized in that the described method comprises the following steps:
Data acquisition obtains Calculation results before the brill of prospect pit and acquires data after the brill for obtaining the prospect pit；
It is opposite with Calculation results before the brill to obtain to carry out calculating analysis to data after the brill for data prediction after brill
Calculation results after the brill answered；
Comparative analysis is obtained based on the comparative analysis to Calculation results after Calculation results before the brill and the brill
Comprehensive analysis processing for data after the brill is as a result, the comprehensive analysis processing result includes calculating analysis knot before the brill
The reasonable sex determination of fruit and/or lead to the reason of Calculation results generate deviation before the brill,
In the comparative analysis step, in Calculation results after Calculation results before the brill and the brill with
The data of oily probability correlation compare and analyze,
Wherein, in the comparative analysis step, for the prospect pit after boring preceding oily probability calculation result and boring
It drills successfully/failure condition to compare and analyze, further comprises:
Success well Plate Analysis definition: using oily probability as abscissa, left ordinate is the frequency that successfully well/failure well occurs
Number, right ordinate is the ratio of successfully well；
Success well number and failure well number after boring in each oily probability interval are counted, calculates the ratio of successfully well, comparative analysis should
Whether ratio is consistent with place oily probability interval, such as meets preferably, ratio curve is in becoming for lasting increase from left to right
Gesture illustrates that the accuracy of prediction before drilling is higher, predicts relatively reasonable；If matching degree is poor, illustrate the prediction accuracy before boring
Difference,
Failure well Plate Analysis definition: the definition of failure well Plate Analysis: with preservation condition, filling condition, reservoir conditions and circle
Closing four geology factor classifications of condition is horizontal axis, and the left side column of the longitudinal axis indicates total dry-well number, and right side column indicates accordingly
Prime factor meets the dry-well number of given threshold value, and broken line indicates the ratio of qualified dry-well number and total dry-well number；
Ratio is bigger, and more to the well that the estimated value of this ground prime factor is bigger than normal before boring, assurance degree is poorer to be needed into one
Walk the ground prime factor of research；
In the comparative analysis step, association exploration targets associated with the prospect pit after brill is obtained, after brill
Successfully/failure condition of drilling of the prospect pit repairs oily probability calculation result before the brill of the association exploration targets
Just, comprising:
The calculating of the trap oily probability of association exploration targets is modified according to the trap oily probability of the prospect pit after brill
Mode are as follows:
In formula: in the case that P (X | A) indicates that A trap contains oil gas, the oily probability of X trap；P (XA) indicates that X, A trap are same
When oily probability；The probability of P (A) expression A trap oily；It indicates to be proved to be not oily in A trap
In the case of, the oily probability of X trap；P (S) indicates the product of identical oil accumulation factor under zone background；P (A | S) it indicates to assume
In the case that zone contains oil gas, the oil-containing probability of A trap.
2. the method according to claim 1, wherein in the comparative analysis step, for the well that fails after brill
Before corresponding brill prime factor calculated result and after the brill fail well actual conditions compare and analyze.
3. method according to claim 1 or 2, which is characterized in that in the comparative analysis step, before the brill
Data relevant to stock number compare and analyze in Calculation results after Calculation results and the brill.
4. according to the method described in claim 3, it is characterized in that, passing through double-log plate in the comparative analysis step
It compares and analyzes, cross/ordinate of the double-log plate is respectively before the brill after Calculation results and the brill
Data relevant to stock number in Calculation results.
5. according to the method described in claim 4, it is characterized in that, in the comparative analysis step, the double-log plate
Cross/ordinate be respectively to calculate analysis after stock number analytical calculation value and the brill before the brill in Calculation results
As a result the stock number analytical calculation value in.
6. according to the method described in claim 4, it is characterized in that, in the comparative analysis step, the double-log plate
Cross/ordinate be respectively special parameter during stock number analytical calculation before the brill in Calculation results analysis meter
The analytical calculation value of respective specific parameter during stock number analytical calculation after calculation value and the brill in Calculation results.
7. according to the method described in claim 3, it is characterized in that, in the comparative analysis step, to be calculated after the brill
The quartile number interval for analyzing the stock number analytical calculation value in result is horizontal axis, with the analysis in Calculation results after the brill
The number of object is the longitudinal axis, according to the stock number analysis meter in Calculation results before the brill of the corresponding analysis object
The distributing position of each quantile of calculation value compares and analyzes.
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